1986 BMW 735 vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 17 year(s). Which means there will be less support and parts availability for 1986 BMW 735. In addition, the cost of maintenance, including insurance, on 1986 BMW 735 would be higher. At 3,430 cc (6 cylinders), 1986 BMW 735 is equipped with a bigger engine. In terms of performance, 1986 BMW 735 (220 HP @ 5700 RPM) has 47 more horse power than 2003 Opel Signum. (173 HP @ 5600 RPM). In normal driving conditions, 1986 BMW 735 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1986 BMW 735 weights approximately 95 kg more than 2003 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1986 BMW 735 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1986 BMW 735. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1986 BMW 735 (315 Nm @ 4000 RPM) has 35 more torque (in Nm) than 2003 Opel Signum. (280 Nm @ 2500 RPM). This means 1986 BMW 735 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 1986 BMW 735 | 2003 Opel Signum | |
| Make | BMW | Opel |
| Model | 735 | Signum |
| Year Released | 1986 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3430 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 220 HP | 173 HP |
| Engine RPM | 5700 RPM | 5600 RPM |
| Torque | 315 Nm | 280 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 92 mm | 86 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Engine Compression Ratio | 9.2:1 | 9.5:1 |
| Top Speed | 238 km/hour | 220 km/hour |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1590 kg | 1495 kg |
| Vehicle Length | 4920 mm | 4640 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2720 mm |
| Fuel Tank Capacity | 70 L | 58 L |
